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Direct connection..........................................................................................................34
Switch connection.........................................................................................................34
Extender connection......................................................................................................35
Ports.................................................................................................................................36
Port attributes and requirements.......................................................................................36
4 Sharing Continuous Access Synchronous volumes.........................................38
Volume types that can be shared with Continuous Access Synchronous..........................................38
Cache Residency....................................................................................................................39
Data Retention.......................................................................................................................40
Thin Provisioning....................................................................................................................41
LUN Expansion......................................................................................................................42
LUN Manager........................................................................................................................42
Performance Monitor...............................................................................................................42
Business Copy........................................................................................................................43
Configurations with Business Copy P-VOLs.............................................................................43
Configurations with Business Copy S-VOLs............................................................................44
Status reporting and data currency.......................................................................................44
Continuous Access Journal.......................................................................................................45
Virtual LVI/LUN......................................................................................................................45
Auto LUN..............................................................................................................................46
Restrictions........................................................................................................................46
5 Configuration operations...........................................................................47
Configuration workflow...........................................................................................................47
Defining port attributes............................................................................................................47
Configuring storage systems, defining logical paths.....................................................................48
Configuring additional logical paths.........................................................................................52
Setting number of VOLs. copied concurrently, other options..........................................................53
Changing options system-wide.............................................................................................54
Changing options for a specific CU......................................................................................54
6 Pair operations.........................................................................................56
Pair operations workflow.........................................................................................................56
Checking pair status...............................................................................................................56
Creating pairs........................................................................................................................56
Splitting pairs.........................................................................................................................58
Resynchronizing pairs.............................................................................................................59
Releasing pairs......................................................................................................................60
7 Data migration.........................................................................................62
Migration overview.................................................................................................................62
Migrating data..................................................................................................................62
8 Monitoring and maintenance.....................................................................63
Monitoring pair status.............................................................................................................63
How pair status changes.....................................................................................................63
Pair status definitions..........................................................................................................64
Split and Suspend types.................................................................................................65
System behavior............................................................................................................66
Monitoring copy operations, I/O statistics.................................................................................66
Selecting data for the usage monitor graph...........................................................................67
Resizing the usage monitor graph, saving data......................................................................68
Monitoring, maintaining logical paths.......................................................................................68
Logical path status definitions..............................................................................................68
Deleting logical paths.........................................................................................................69
Exporting pair information to a text file......................................................................................70
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